Most of the more touristed earth houses offer simple lodgings, which generally will not provide the most basic conveniences and should cost around ¥30. Rooms are simple, and bathrooms are frequently located outside of the tulou. Many tulous also close around 8PM every evening.
Hukeng village has several lodgings that are a step up from this, speak basic English, and offer Western food and coffee, try:
Fuyu Building Changdi Inn
+86 597 5532280